Cortisol Awakening Response (CAR)-Precision Analytical, Inc. Kit

Note: This is a home collection test kit that will be mailed to you.



Fasting Required: No

Specimen: Five (5) Saliva Samples

Results: 10-14 Business Days
Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.

Description: Upon waking, cortisol levels naturally begin to rise by an average of 50%. 30 minutes after waking, cortisol levels will still show this sharp increase. By 60 minutes after waking, cortisol levels have peaked and begin to decline. Measuring this rise and fall of cortisol levels at waking can be used as a “mini stress test”. Research shows that the size of this increase correlates with HPA-axis function, even if the sample measurements are all within range. A quick saturation of saliva swabs upon waking, and at 30 and 60 minutes after waking, provide what is required to assess a patient’s Cortisol Awakening Response.

Additional Test Available for add-on at additional cost:
Insomnia Cortisol

Analytes Reported:
Cortisol (1)
Cortisone (1)